Four-jaw collet chuck



FIG. 1 is a perspective view from below of the invention;

FIG. 2 is a front elevational view;

FIG. 3 is a right-side elevational view, the left-side elevational view being a mirror image thereof;

FIG. 4 is a back elevational view;

FIG. 5 is a bottom view; and,

FIG. 6 is a top view. 

CLAIM The ornamental design for a four-jaw collet chuck, as shown and described. 